Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov.
Pinnularia subaltiplanensis sp. nov. (Figs 29–35) Valvae lineares ad angustissime lanceolatae, marginibus parallelis ad leviter convexis. Apices in speciminibus maioribus leviter protractae, late subrostratis, in speciminibus minorobus late rotundatae. Longitudo 21–28 µm, latitudo 3.6– 4.5 µm. Area...
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2012
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Online Access: | https://dx.doi.org/10.5281/zenodo.4929561 https://zenodo.org/record/4929561 |
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ftdatacite:10.5281/zenodo.4929561 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Naviculaceae Pinnularia Pinnularia subaltiplanensis |
spellingShingle |
Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Naviculaceae Pinnularia Pinnularia subaltiplanensis Zidarova, Ralitsa Kopalová, Kateŕina Vijver, Bart Van De Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov. |
topic_facet |
Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Naviculaceae Pinnularia Pinnularia subaltiplanensis |
description |
Pinnularia subaltiplanensis sp. nov. (Figs 29–35) Valvae lineares ad angustissime lanceolatae, marginibus parallelis ad leviter convexis. Apices in speciminibus maioribus leviter protractae, late subrostratis, in speciminibus minorobus late rotundatae. Longitudo 21–28 µm, latitudo 3.6– 4.5 µm. Area axialis angusta, linearis, non dilatans in aream centralem. Area centralis formans fasciam latam, aliquando asymmetricam. Raphe filiformis, ramis rectis, terminationibus raphis proximalibus unilateraliter leviter deflexis cum, extensis in aream centralem. Terminationes raphis distales paene non discernandae in LM, falcatae. Striae leviter ad moderate radiatae in media parte valvae, convergentes ad apices, 16–19 in 10 µm. Lineae speciosae longitudinales nullae. Valves linear to narrowly lanceolate with parallel to slightly convex margins. Apices in larger specimens slightly protracted and broadly subrostrate, in smaller valves clearly broadly rounded. Valve dimensions (n=10): length 21–28 µm, width 3.6–4.5 µm. Axial area narrow, linear, almost not slightly widened towards the valve middle. Central area forming a large, occasionally asymmetrical, fascia, about ¼ to ⅓ of the valve length. Raphe straight with weakly deflected proximal endings, extending well beyond the last central striae, terminating in clearly expanded central pores, moderately distantly spaced. Distal raphe fissures barely visible, probably sickle-shaped. Striae weakly to moderately radiate near the centre, convergent at the apices, 16–19 in 10 µm. Longitudinal lines not visible in LM. Type:— Hurd Peninsula, Livingston Island, South Shetland Islands, sample A24/2006, leg. R. Zidarova, coll. date 27/12/2005, slide no. BR-4261 (holotype BR), slide PLP-206 (isotype University of Antwerp, Belgium), slide ZU8/27 (isotype BRM). Habitat:— The largest population of P. subaltiplanensis was observed on Hurd Peninsula where the species was found in low abundances in a small brook flowing out from a shallow lake with a low specific conductance (58 µS/cm) value and pH of 6.3. Occasionally the species was found in a wet moss vegetation growing around small puddles. On Byers Peninsula, only a few valves were observed. Etymology: —The specific epithet refers to its close resemblance to P. altiplanensis Lange-Bert., Krammer & Rumrich in Rumrich, Lange-Bert., & Rumrich 2000: 197). Observations:— Pinnularia subaltiplanensis is most similar to P. altiplanensis but the valves are narrower than the type population of P. altiplanensis from the Chilean Altiplano (3.6–4.5 vs. 4–6 µm in P. altiplanensis ) giving them a more slender outlook. The central raphe endings in P. subaltiplanensis are more distantly spaced than in P. altiplanensis . Pinnularia laucensis is smaller, with a maximum length of up to 20 µm and a valve width of 3.3–4.5 µm compared to 21–28 µm and 3.6–4.5 µm in subaltiplanensis , and has less radiate, widely spaced striae (11–14 vs. 16–19 in 10 µm). Other similar species are P. schoenfelderi, P. frauenbergiana Reichardt (1985: 182) and P. kuetzingii Krammer (1992: 104), all known from Europe (Krammer 2000). Pinnularia schoenfelderi can be easily separated based on the larger valve width (5–7 µm vs 3.6–4.5 µm) and lower stria density (13–16 vs 16–19 in 10 µm), as well as the smaller central area, less distantly spaced central raphe endings and a more lanceolate valve outline. Pinnularia frauenbergiana has comparable valve dimensions but a more elliptic-lanceolate valve outline and more densely spaced striae (18– 22 in 10 µm). Pinnularia kuetzingii differs by having a higher stria density of 18–20 in 10 µm (vs. 16–19 in 10 µm) and less distantly spaced proximal pores. Finally, P. bertrandii , according to Rumrich et al. (2000) is similar to P. altiplanensis, has broad subcapitate valve ends and an axial area that is clearly widens towards the central area (Krammer 2000). : Published as part of Zidarova, Ralitsa, Kopalová, Kateŕina & Vijver, Bart Van De, 2012, The genus Pinnularia (Bacillariophyta) excluding the section Distantes on Livingston Island (South Shetland Islands) with the description of twelve new taxa, pp. 11-37 in Phytotaxa 44 on page 16, DOI: 10.11646/phytotaxa.44.1.2, http://zenodo.org/record/4894994 : {"references": ["Rumrich, U., Lange-Bertalot, H. & Rumrich, M. (2000) Diatomeen der Anden. Von Venezuela bis Patagonien / Feuerland. Iconographia Diatomologica 9: 1 - 649.", "Reichardt, E. (1985) Diatomeen an feuchten felsen des sudlichen Frankenjuras. Berichte der bayerischen Botanisches Gesellschaft 56: 167 - 187.", "Krammer, K. (1992) Pinnularia eine monographie der europaischen taxa. Bibliotheca Diatomologica 26: 353 pp.", "Krammer, K. (2000) The genus Pinnularia. In: H. Lange-Bertalot (ed.), Diatoms of Europe, Diatoms of the European Inland waters and comparable habitats. A. R. G. Gantner Verlag K. G., 1: 703 pp."]} |
format |
Text |
author |
Zidarova, Ralitsa Kopalová, Kateŕina Vijver, Bart Van De |
author_facet |
Zidarova, Ralitsa Kopalová, Kateŕina Vijver, Bart Van De |
author_sort |
Zidarova, Ralitsa |
title |
Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov. |
title_short |
Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov. |
title_full |
Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov. |
title_fullStr |
Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov. |
title_full_unstemmed |
Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov. |
title_sort |
pinnularia subaltiplanensis zidarova & kopalová & vijver 2012, sp. nov. |
publisher |
Zenodo |
publishDate |
2012 |
url |
https://dx.doi.org/10.5281/zenodo.4929561 https://zenodo.org/record/4929561 |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-60.283,-60.283,-63.900,-63.900) ENVELOPE(-60.366,-60.366,-62.682,-62.682) ENVELOPE(-61.066,-61.066,-62.633,-62.633) ENVELOPE(-66.783,-66.783,-68.867,-68.867) ENVELOPE(-60.366,-60.366,-62.676,-62.676) |
geographic |
South Shetland Islands Livingston Island Byers Hurd Byers peninsula Sickle Hurd peninsula |
geographic_facet |
South Shetland Islands Livingston Island Byers Hurd Byers peninsula Sickle Hurd peninsula |
genre |
Livingston Island South Shetland Islands |
genre_facet |
Livingston Island South Shetland Islands |
op_relation |
http://zenodo.org/record/4894994 http://publication.plazi.org/id/FFCB1017FF94925D427CFB34FFCF930D https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.44.1.2 http://zenodo.org/record/4894994 http://publication.plazi.org/id/FFCB1017FF94925D427CFB34FFCF930D https://dx.doi.org/10.5281/zenodo.4894996 https://dx.doi.org/10.5281/zenodo.4929560 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.4929561 https://doi.org/10.11646/phytotaxa.44.1.2 https://doi.org/10.5281/zenodo.4894996 https://doi.org/10.5281/zenodo.4929560 |
_version_ |
1766063758822604800 |
spelling |
ftdatacite:10.5281/zenodo.4929561 2023-05-15T17:08:08+02:00 Pinnularia subaltiplanensis Zidarova & Kopalová & Vijver 2012, sp. nov. Zidarova, Ralitsa Kopalová, Kateŕina Vijver, Bart Van De 2012 https://dx.doi.org/10.5281/zenodo.4929561 https://zenodo.org/record/4929561 unknown Zenodo http://zenodo.org/record/4894994 http://publication.plazi.org/id/FFCB1017FF94925D427CFB34FFCF930D https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/phytotaxa.44.1.2 http://zenodo.org/record/4894994 http://publication.plazi.org/id/FFCB1017FF94925D427CFB34FFCF930D https://dx.doi.org/10.5281/zenodo.4894996 https://dx.doi.org/10.5281/zenodo.4929560 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Chromista Bacillariophyta Bacillariophyceae Naviculales Naviculaceae Pinnularia Pinnularia subaltiplanensis Text Taxonomic treatment article-journal ScholarlyArticle 2012 ftdatacite https://doi.org/10.5281/zenodo.4929561 https://doi.org/10.11646/phytotaxa.44.1.2 https://doi.org/10.5281/zenodo.4894996 https://doi.org/10.5281/zenodo.4929560 2021-11-05T12:55:41Z Pinnularia subaltiplanensis sp. nov. (Figs 29–35) Valvae lineares ad angustissime lanceolatae, marginibus parallelis ad leviter convexis. Apices in speciminibus maioribus leviter protractae, late subrostratis, in speciminibus minorobus late rotundatae. Longitudo 21–28 µm, latitudo 3.6– 4.5 µm. Area axialis angusta, linearis, non dilatans in aream centralem. Area centralis formans fasciam latam, aliquando asymmetricam. Raphe filiformis, ramis rectis, terminationibus raphis proximalibus unilateraliter leviter deflexis cum, extensis in aream centralem. Terminationes raphis distales paene non discernandae in LM, falcatae. Striae leviter ad moderate radiatae in media parte valvae, convergentes ad apices, 16–19 in 10 µm. Lineae speciosae longitudinales nullae. Valves linear to narrowly lanceolate with parallel to slightly convex margins. Apices in larger specimens slightly protracted and broadly subrostrate, in smaller valves clearly broadly rounded. Valve dimensions (n=10): length 21–28 µm, width 3.6–4.5 µm. Axial area narrow, linear, almost not slightly widened towards the valve middle. Central area forming a large, occasionally asymmetrical, fascia, about ¼ to ⅓ of the valve length. Raphe straight with weakly deflected proximal endings, extending well beyond the last central striae, terminating in clearly expanded central pores, moderately distantly spaced. Distal raphe fissures barely visible, probably sickle-shaped. Striae weakly to moderately radiate near the centre, convergent at the apices, 16–19 in 10 µm. Longitudinal lines not visible in LM. Type:— Hurd Peninsula, Livingston Island, South Shetland Islands, sample A24/2006, leg. R. Zidarova, coll. date 27/12/2005, slide no. BR-4261 (holotype BR), slide PLP-206 (isotype University of Antwerp, Belgium), slide ZU8/27 (isotype BRM). Habitat:— The largest population of P. subaltiplanensis was observed on Hurd Peninsula where the species was found in low abundances in a small brook flowing out from a shallow lake with a low specific conductance (58 µS/cm) value and pH of 6.3. Occasionally the species was found in a wet moss vegetation growing around small puddles. On Byers Peninsula, only a few valves were observed. Etymology: —The specific epithet refers to its close resemblance to P. altiplanensis Lange-Bert., Krammer & Rumrich in Rumrich, Lange-Bert., & Rumrich 2000: 197). Observations:— Pinnularia subaltiplanensis is most similar to P. altiplanensis but the valves are narrower than the type population of P. altiplanensis from the Chilean Altiplano (3.6–4.5 vs. 4–6 µm in P. altiplanensis ) giving them a more slender outlook. The central raphe endings in P. subaltiplanensis are more distantly spaced than in P. altiplanensis . Pinnularia laucensis is smaller, with a maximum length of up to 20 µm and a valve width of 3.3–4.5 µm compared to 21–28 µm and 3.6–4.5 µm in subaltiplanensis , and has less radiate, widely spaced striae (11–14 vs. 16–19 in 10 µm). Other similar species are P. schoenfelderi, P. frauenbergiana Reichardt (1985: 182) and P. kuetzingii Krammer (1992: 104), all known from Europe (Krammer 2000). Pinnularia schoenfelderi can be easily separated based on the larger valve width (5–7 µm vs 3.6–4.5 µm) and lower stria density (13–16 vs 16–19 in 10 µm), as well as the smaller central area, less distantly spaced central raphe endings and a more lanceolate valve outline. Pinnularia frauenbergiana has comparable valve dimensions but a more elliptic-lanceolate valve outline and more densely spaced striae (18– 22 in 10 µm). Pinnularia kuetzingii differs by having a higher stria density of 18–20 in 10 µm (vs. 16–19 in 10 µm) and less distantly spaced proximal pores. Finally, P. bertrandii , according to Rumrich et al. (2000) is similar to P. altiplanensis, has broad subcapitate valve ends and an axial area that is clearly widens towards the central area (Krammer 2000). : Published as part of Zidarova, Ralitsa, Kopalová, Kateŕina & Vijver, Bart Van De, 2012, The genus Pinnularia (Bacillariophyta) excluding the section Distantes on Livingston Island (South Shetland Islands) with the description of twelve new taxa, pp. 11-37 in Phytotaxa 44 on page 16, DOI: 10.11646/phytotaxa.44.1.2, http://zenodo.org/record/4894994 : {"references": ["Rumrich, U., Lange-Bertalot, H. & Rumrich, M. (2000) Diatomeen der Anden. Von Venezuela bis Patagonien / Feuerland. Iconographia Diatomologica 9: 1 - 649.", "Reichardt, E. (1985) Diatomeen an feuchten felsen des sudlichen Frankenjuras. Berichte der bayerischen Botanisches Gesellschaft 56: 167 - 187.", "Krammer, K. (1992) Pinnularia eine monographie der europaischen taxa. Bibliotheca Diatomologica 26: 353 pp.", "Krammer, K. (2000) The genus Pinnularia. In: H. Lange-Bertalot (ed.), Diatoms of Europe, Diatoms of the European Inland waters and comparable habitats. A. R. G. Gantner Verlag K. G., 1: 703 pp."]} Text Livingston Island South Shetland Islands DataCite Metadata Store (German National Library of Science and Technology) South Shetland Islands Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Byers ENVELOPE(-60.283,-60.283,-63.900,-63.900) Hurd ENVELOPE(-60.366,-60.366,-62.682,-62.682) Byers peninsula ENVELOPE(-61.066,-61.066,-62.633,-62.633) Sickle ENVELOPE(-66.783,-66.783,-68.867,-68.867) Hurd peninsula ENVELOPE(-60.366,-60.366,-62.676,-62.676) |